Split-pulley attachment.



No. 696,636. Patented Apr. 1, I902. A W HIGHT SPLIT PULLEY ATTACHMENT.

(Application filed June 4, 1901.)

(No llodei.)

} INVENTOR J?Z&rZ/2%' %f BY I ATTORNEYS rawns ATENT which.

ALBERT WATSON HIGI-IT, OF 'BALLARD, WASHINGTON, ASSIGNOR OF ONE- IIALF TO EBEN B. SANKEY, OF SEATTLE, WASHINGTON.

SPLET PULLEY ATTACHMENT.

EPECIFICATIQ-N forming part of Letters Eatent No. 696,636, dated April 1, 1902.

Application filed June 4, 1901. Serial No. 63,053. (No model.)

To all 1071,0777, it may concern.-

Be itknown that I, ALBERT W ATSON HIGHT, a citizen of the United States, and a resident of Ballard, in the county of King and State of Washington, have invented a new and Improved Split-Pulley Attachment, of which the following is a full, clear, and exact description.

This invention relates to a means for holding firmly the sections of a split pulley upon a shaft. In the form of split pulleys to which my invention relates two pulley-sections are employed, and these sections are held in place by U -loolts, which pass through the pulley-sections and around the shaft. Great difficulty has been experienced in holding the U-bolts firmly engaged with the shaft, and my invention relates to a certain device for effectively accomplishing this result.

This specification is a specific description of one form of the invention, while the claim is a definition of the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part of this specification,

in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a fragmentary view of a pulley, showing the invention in use. Fig. 2 is an enlarged View showing the position of the attachmentwith respectto the U -bolt and shaft. Fig. 8 is a section through the parts shown in Fig. 2. Fig. 4 is a detail perspective of the attachment, and Fig. 5 is an end elevation thereof.

a indicates the pulley-sections, Z) the shaft, and c the U-bolts, which hold the sections a on the shaft.

My invention comprises a segmental bar cl, having in its outer face a groove cl, receiving 40 the U-bolt, and having at the ends of the said outer face sharp edges (1 adapted to impinge against the U-bolt, as shown in Fig. 2. The segment has at the inner portions of its ends sharp edges 01 which are adapted to impinge against the shaft Z). As shown in the drawings, the segment is curved in an arc eccentric to the circumference of the shaft, so that only the points d of the segment engage the shaft. The same is true of the groove (1 with respect to the U-bolt cthat is to say, only the edges (1 of the segment engage the U -bolt.

When the U-bolts are tightened in place and one of the segments is applied to each U- bolt, as shown in Fig. 1, the points or edges (Z are forced into engagement with the U- bolts and the points (1 are forced into engagement with the shaft. This holds the parts I) and c rigidly together and prevents any turning movement of the U-bolts on the shaft irrespective of the direction in which the pulley revolves.

Having thus described my invention, I claim as new and desire to secure by Letters Patent-- In a split pulley, the combination with the pulley-sections, the shaft, and U-bolts holding the sections on the shaft, of a segmental bar fitted to each U-bolt and the shaft to fasten the U-bolts and shaft together, said segmental bar having at each end oppositely-dis- 7o posed sharp edges engaging respectively with the shaft and U-bolts, the intermediate portions of the bar being respectively free from engagement with the U-bolts and shaft, for the purpose specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ALBERT WATSON I'IIGHT.

Witnesses:

DAVID McVAY, W. H. MoEWEN. 

